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BASF Panel Discussion Focuses on Mixing Concrete in Space

For many years engineers have dreamed about building habitable structures on the Moon or Mars. Those structures will have to be sturdy and stable, which begs the question, why not use concrete?

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From Quarry to Mountain Bike Park

Transit Mix, a subsidiary of Chicago-based Continental Materials, is hoping to turn a Colorado Springs, Colo., quarry where it plans to discontinue operations into a world-class mountain bike park.

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Oldest Footprints in North America Found in Rock

Based on modern estimates, an active human will take more than 224,000,000 steps over a lifespan of 65 years based on an average of 9,448 steps per day. Most footprints that result from these steps are ephemeral, poorly defined and disappear quickly. In some cases, a distinct cast of the foot is left in soft sediments, preserving a representation of the foot and motion of the individual in solid rock.

Read more: Oldest Footprints in North America Found in Rock